import Testing

@testable import Infrastructure

@Suite("Asset protocol")
struct AssetTests {

    // MARK: Properties

    private let image = StubAsset(
        fileExtensions: [.png],
        fileName: "icon"
    )
    private let shared = StubAsset(
        fileExtensions: [.css, .js],
        fileName: "shared"
    )

    // MARK: Method tests

    @Test
    func `relative path nests the file inside its extension's sub-directory`() {
        #expect(shared.relativePath(for: .css) == "css/shared.css")
        #expect(shared.relativePath(for: .js) == "js/shared.js")
    }

    @Test
    func `relative path keeps the file at the root without a sub-directory`() {
        #expect(image.relativePath(for: .png) == "icon.png")
    }

    @Test
    func `url path prefixes the relative path with a slash`() {
        #expect(shared.urlPath(for: .css) == "/css/shared.css")
        #expect(image.urlPath(for: .png) == "/icon.png")
    }

    @Test
    func `url path appends a version token as a query parameter`() {
        #expect(shared.urlPath(
            for: .css,
            version: "0123456789abcdef"
        ) == "/css/shared.css?v=0123456789abcdef")
    }

    @Test(arguments: [nil, ""] as [String?])
    func `url path without a version`(
        version: String?
    ) {
        #expect(shared.urlPath(
            for: .css,
            version: version
        ) == "/css/shared.css")
    }

    @Test(arguments: [
        "",
        ".",
        "Resources/Static"
    ])
    func `path relative to`(
        _ basePath: String
    ) {
        for fileExtension in shared.fileExtensions {
            let pathRelativeToBasePath = shared.path(
                relativeTo: basePath,
                for: fileExtension
            )
            let relativePath = shared.relativePath(for: fileExtension)

            if basePath.isEmpty {
                #expect(pathRelativeToBasePath == relativePath)
            } else {
                #expect(pathRelativeToBasePath == "\(basePath)/\(relativePath)")
            }
        }
    }

}